Muscle Pain

I am having a muscle pain on my thigh part right now. I think this happened to me because of not exercising regularly. I worked on our Christmas decorations in a squat position yesterday. I didn't feel anything until I was going to bed last night. And this morning it got worse when my brother and my sister asked me if i wanted to go to Kawa-kawa which is a hill in Ligao. We went up that hill with the use of our feet. So yeah it doubles up even triple up the pain on my thigh. Ugh!